Safety thumb tack with retractable housing

Details Safety thumb tack with retractable housing Safety thumb tack with retractable housing

1997-07-11

2000-02-08

Baynham, Holly

Tools and hardware

Fastener, support or mount not elsewhere specified

Fastener or coupling

0808

Patent

active

D04202821

REFERENCES:
patent: 302910 (1884-08-01), Holmes
patent: 3146003 (1964-08-01), DeRonde
patent: 3894467 (1975-07-01), Brescia
Sterling Instrument, rounded thread, located at top of page, Jun. 1981.
Sweets catalog, p. 2 rivet -item A located at left of page, Jan. 1969.
Sweets catalog, p. FAS/st1, rivet-item A located at bottom of page, Jan. 1969.
Sweets Catalog, p. 10, connecting thread-item A located at left of page, Jan. 1969.
Sweets Catalog, p. 9, lug, item A located at left of page, Jan. 1969.

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