Chronograph

Details Chronograph Chronograph

1983-12-15

1986-06-24

Zarfas, Louis S.

Measuring, testing, or signalling instruments

Watch, wristwatch or case

Combined

D10 39

Patent

active

D02843560

REFERENCES:
patent: D248219 (1978-06-01), Porsche
patent: D250634 (1978-12-01), Porsche
patent: D268169 (1983-03-01), DeChristopher
patent: D270243 (1983-08-01), Porsche
patent: 3911664 (1975-10-01), Haber
European Jeweler, 7/74, p. 57-Chronograph at bottom right.
Jewelers' Circular-Keystone, 9/78, p. 139-Watch at lower center.
Swiss Watch & Jewelry Journal, 1982, vol. 6, p. 656-Ebel Chronograph.
International Design Registration No. 57595, 12-6-73, Porsche Design.
American Express Brochure-5-12-77, "The Black Watch" .TM. on cover.
Jeweler's Circular-Keystone-7/78-p. 252-Chronograph at top-center.

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