Requests for Reexaminations Filed

   Notice under 37 CFR 1.11(c). The requests for reexamination listed
below are open to inspection by the general public in the indicated
Examining Groups. Copies of the requests and related papers may be
obtained by paying the fee therefor established in the Rules (37 CFR
1.19(a)).
   In the event correspondence to the patent owner is not received, this
notice will be considered to be constructive notice to the patent owner
and reexamination will proceed (37 CFR 1.248(a)(5) and 1.525(b)).

   4,399,407, Reexam. No. 90/004,031, Nov. 13, 1995, Cl. 324/379, ENGINE
ANALYSER WITH CONSTANT WIDTH DIGITAL WAVEFORM DISPLAY, Michael J. Kling,
et. al., Owner of Record: SPX Corp., Muskegon, Mich., Attorney or Agent:
David R. Fairbairn, Kinney & Lange, Minneapolis, Minn., Ex. Gp.: 2213,
Requester: Snap-On Inc., Kenosha, Wis., c/o H. V. Stotland & J. Terry
Stratman, Emrich & Dithman, Chicago, Ill.

   5,037,437, Reexam. No. 90/004,032, Nov. 14, 1995, Cl. 623/016, METHOD
OF BONE PREPARATION FOR PROSTHETIC FIXATION, Frederick A. Matsen, III,
Owner of Record: University of Washington, Seattle, Wash., Attorney or
Agent: Kinney & Lange, Minneapolis, Minn., Ex. Gp.: 3308, Requester:
Richard J. Anderson, Fish & Richardson, Minneapolis, Minn.

   5,375,853, Reexam. No. 90/004,030, Nov. 1, 1995, Cl. 277/059, GAS
LUBRICATED BARRIER SEAL, James R. Wasser, et. al., Owner of Record: John
Crane, Inc., Morton Grove, Ill., Attorney or Agent: Vangelis Economou,
Dorn, McEachran, Jambor & Keating, Chicago, Ill., Ex. Gp.: 3108,
Requester: Owner