Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1988-12-09
1991-03-05
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03151085
REFERENCES:
patent: D249336 (1978-09-01), Webb
patent: 4509749 (1985-04-01), Robinson
Chas. Schwartz and Son, Tennis Racket with Pearl, 5/63, p. 2.
Sports Novelties, Mfgrs., Tennis Pin, 9/73, cover.
Davis Antoine D.
Holtje Nelson C.
Sportfolio Limited
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