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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2004 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant
First-Named Assignee 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 33 18 18 18 12 20 16 16 19 15 8 12 11 11 11 12 4 5 6 12 8 10 3 8 8 10 11 10 7 10 4 9 23 10 13 9 430
DANA CORPORATION 4 1 0 0 0 1 1 0 1 1 0 0 1 0 1 2 3 2 0 2 4 0 1 0 2 4 2 3 14 8 7 5 6 2 0 0 78
GLAENZER SPICER 1 0 0 0 5 8 1 4 1 0 2 2 3 3 0 5 4 9 4 2 4 3 4 3 2 4 0 1 0 0 0 0 0 0 0 0 75
VALEO S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 9 3 3 8 3 7 2 2 3 4 3 8 2 3 8 1 0 0 75
GENERAL MOTORS CORPORATION 4 4 4 4 0 4 1 2 1 2 3 1 2 3 2 3 4 0 0 2 2 2 3 3 0 4 3 3 1 3 0 1 0 0 0 0 71
GKN AUTOMOTIVE AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5 6 7 10 12 11 2 5 4 5 1 0 70
LOHR + BROMKAMP GMBH 2 0 2 0 0 0 1 1 8 2 3 1 2 0 2 2 0 1 2 1 2 1 3 2 2 4 2 5 8 5 2 0 0 0 0 0 66
NTN CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 1 0 0 7 5 4 2 12 9 8 10 62
EXEDY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 14 8 4 15 4 3 3 56
UNI-CARDAN AG 0 0 0 0 0 4 2 0 0 6 2 4 3 5 4 5 7 3 4 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 53
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 4 7 3 4 2 2 4 8 2 6 2 0 0 48
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 0 0 0 0 0 0 0 0 0 1 3 0 1 1 0 3 2 1 0 0 4 0 1 0 0 0 1 0 5 1 2 0 7 1 4 38
KABUSHIKI KAISHA DAIKIN SEISAKUSHO 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 10 3 4 1 1 1 4 0 1 0 5 0 0 0 0 0 0 0 0 37
GKN AUTOMOTIVE INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 4 5 3 0 0 0 1 0 1 4 3 8 2 35
GKN LOBRO GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 20 6 1 5 34
JEAN WALTERSCHEID GMBH 1 0 2 1 0 1 0 0 0 3 1 1 1 2 1 6 3 4 1 1 0 0 2 0 1 2 0 0 0 0 0 0 0 0 0 0 34
TOYOTA JIDOSHA K.K. 0 1 1 0 1 0 0 0 3 1 1 2 4 2 2 1 2 0 0 1 0 4 1 0 1 0 1 0 0 1 1 0 1 0 1 0 33
BORG-WARNER CORPORATION 4 0 1 0 0 1 0 0 4 0 2 3 3 4 0 3 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 27
DAIMLER-BENZ AKTIENGESELLSCHAFT 3 1 0 1 1 0 0 0 0 1 1 1 1 0 0 1 2 0 1 0 2 3 2 0 0 0 0 0 1 1 1 0 0 0 0 0 24
DELPHI TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 4 6 10 24
KOPPERS COMPANY INC. 0 0 1 4 2 1 1 4 3 0 1 1 0 1 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
NSK LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 3 1 7 5 1 2 22
ZELLER CORPORATION 0 0 0 0 0 3 0 0 0 1 0 2 0 0 0 0 5 1 1 0 2 0 0 0 1 2 2 0 1 0 1 0 0 0 0 0 22
CATERPILLAR INC. 2 0 1 1 1 0 0 2 0 1 1 4 1 3 0 0 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 21
FORD MOTOR COMPANY 3 1 3 2 1 1 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 2 2 0 0 0 0 0 21
GELENKWELLENBAU GMBH 0 0 2 2 1 1 0 2 0 1 1 3 1 1 0 0 0 0 0 0 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 21
DEERE + COMPANY 2 2 0 0 0 0 1 0 1 2 0 0 0 0 1 1 2 0 3 0 1 0 0 1 0 0 0 0 0 0 0 1 0 1 0 1 20
EATON CORPORATION 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 2 0 0 0 4 4 0 0 1 2 0 0 2 0 0 0 0 20
GKN WALTERSCHEID GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 4 1 3 2 4 1 1 20
GENERAL ELECTRIC COMPANY 0 0 3 4 0 1 0 0 3 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 1 18
LORD CORPORATION 0 0 0 0 0 0 0 0 1 0 0 2 0 0 2 0 0 1 0 0 2 1 1 0 1 0 0 1 0 2 1 0 3 0 0 0 18
MANNESMANN SACHS AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 4 6 2 1 18
NISSAN MOTOR COMPANY, LIMITED 0 0 0 0 0 1 2 1 3 1 0 0 0 2 0 0 0 2 1 1 0 0 0 0 2 1 0 0 0 1 0 0 0 0 0 0 18
AISIN SEIKI KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 2 2 0 0 2 0 0 4 2 1 0 0 0 0 0 0 16
CARL FREUDENBERG 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 3 1 1 0 0 0 1 0 3 1 1 1 0 1 0 0 1 16
HACKFORTH GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 2 2 1 1 0 2 0 1 1 0 1 0 0 1 0 1 0 0 0 0 1 1 1 0 16
TORRINGTON COMPANY 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 1 0 0 0 0 0 0 2 0 1 1 0 0 1 2 2 16
KOYO SEIKO COMPANY, LTD. 0 0 0 0 0 0 0 0 0 3 5 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 1 0 1 0 1 0 15
ROCKWELL INTERNATIONAL CORPORATION 0 1 2 0 2 0 0 1 1 2 0 0 1 0 0 0 1 3 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 15
BENDIX CORPORATION(NOW ALLIED-SIGNAL INC.) 1 2 0 0 0 1 0 0 0 1 0 0 3 1 4 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
J. M. VOITH GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 2 2 1 1 1 0 1 0 1 0 1 0 0 0 0 14
ROBERT BOSCH GMBH 0 0 0 0 0 6 1 0 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 14
UNISIA JECS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 2 4 1 3 0 13
FICHTEL + SACHS AG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 1 3 0 3 1 0 0 0 0 12
RELIANCE ELECTRIC CO. 1 2 0 0 2 1 1 0 0 0 1 0 0 0 0 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
VISTEON GLOBAL TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4 6 12
ALLIED-SIGNAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 11
AMERICAN AXLE & MANUFACTURING, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 1 4 11
GKN AUTOMOTIVE COMPONENTS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
NADELLA S.A. 1 1 1 1 0 1 2 0 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
SKF INDUSTRIAL TRADING AND DEVELOPMENT COMPANY B.V. 0 0 0 1 0 0 1 2 0 0 0 1 0 2 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 11
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 4 3 0 1 11
BARRY-WRIGHT CORPORATION 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 2 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 4 10
NIPPON SEIKO KABUSHIKI KAISHA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 1 3 1 1 0 0 0 0 0 0 0 0 0 0 0 10
SUNDSTRAND CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 10
XEROX CORPORATION 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 1 1 1 0 10
ATLAS COPCO AB 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 4 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 1 1 2 9
FALK CORPORATION 1 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 9
GKN AUTOMOTIVE GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 9
NEAPCO, INC. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 2 1 2 1 0 0 0 9
POWER TRANSMISSION TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 0 2 1 0 1 0 0 1 0 0 0 1 0 0 0 9
REXNORD INC. 0 1 0 0 0 0 0 0 3 0 0 0 0 1 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
ATEC-WEISS KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 1 0 0 2 1 1 8
G.K.N. BIRFIELD TRANSMISSIONS LIMITED 0 0 0 6 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
GATES RUBBER COMPANY 0 0 1 0 1 2 0 1 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
KOP-FLEX, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 0 0 0 0 1 0 1 1 8
SPICER DRIVESHAFT, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 1 0 8
WOCO FRANZ-JOSEF WOLF & CO. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 8
MASCHINENFABRIK STROMAG G.M.B.H. 0 0 0 2 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
VOITH TRANSMIT GMBH 0 0 0 0 0 0 0 0 0 0 1 0 3 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
WEASLER ENGINEERING, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 2 0 0 0 1 0 0 7
AUTOMOBILES CITROEN 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
AVCO CORPORATION 0 0 1 0 1 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
C. VAN DER LELY N. V. 0 0 0 0 0 0 0 0 0 0 0 2 2 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 6
CENTA-ANTRIEBE KIRSCHEY GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 1 1 0 0 6
DENSO CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 2 6
GKN TRANSMISSIONS LIMITED 0 0 0 0 0 2 2 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
J. M. VOITH TURBO GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 6
LUCAS INDUSTRIES PUBLIC LTD. COMPANY 0 0 0 1 0 0 0 0 0 0 0 0 2 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 6
MITSUBISHI DENKI KABUSHIKI KAISHA 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0 6
PENNWALT CORPORATION 1 0 0 0 0 0 0 0 0 0 0 1 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
REXNORD CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2 2 0 0 0 6
ROHS-VOIGT PATENTVERWERTUNGSGESELLSCHAFT MBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 2 0 0 6
SGF SUDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 6
TORQUE-TRACTION TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 6
TRW INC. 0 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 6
UNITED TECHNOLOGIES CORPORATION 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 6
BOEING COMPANY 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
DRESSER INDUSTRIES, INC. 0 0 0 0 1 1 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ELLERGON ANTRIEBSTECHNIK GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 1 0 5
FORD GLOBAL TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 5
HITACHI, LTD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 5
ITT CORPORATION 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 5
KTR KUPPLUNGSTECHNIK GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 1 0 0 0 0 5
LEMFORDER METALLWAREN AG 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 5
LOVEJOY, INC. 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 5
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 5
MERITOR HEAVY VEHICLE SYSTEMS, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 5
NTN TOYO BEARING CO. LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SKF KUGELLAGERFABRIKEN GMBH 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SPICER GELENKWELLENBAU GMBH & CO. KG 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 3 5
TWIN DISC, INC. 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
UNITED STATES OF AMERICA, NAVY 0 0 0 0 0 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 5


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