Rotatable concrete spacer

Details Rotatable concrete spacer Rotatable concrete spacer

1995-08-18

1996-08-27

Baynham, Holly H.

Tools and hardware

Fastener, support or mount not elsewhere specified

Support, guide, or spacer

Patent

active

D03730700

REFERENCES:
patent: D243655 (1977-03-01), Matousek et al.
patent: D315667 (1991-03-01), Johnson
patent: D316954 (1991-05-01), Glaser et al.
patent: D330507 (1992-10-01), Foubister
patent: 849922 (1907-04-01), Scofield
patent: 1366053 (1921-01-01), Bingham
patent: 1708277 (1929-04-01), Martin
patent: 1946418 (1934-02-01), Welch
patent: 3044217 (1962-07-01), Berry
patent: 3257767 (1966-06-01), Lassy
patent: 3471986 (1969-10-01), Swenson
patent: 4627211 (1986-12-01), Foster, Jr.
patent: 4741143 (1988-05-01), Foster, Jr.
patent: 5269113 (1963-12-01), Dreizler

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