Stock material or miscellaneous articles – All metal or with adjacent metals – Width or thickness variation or marginal cuts repeating...
Patent
1979-12-18
1982-07-06
Hunt, Brooks H.
Stock material or miscellaneous articles
All metal or with adjacent metals
Width or thickness variation or marginal cuts repeating...
428573, 428577, 428582, 52287, 52288, E04B 108
Patent
active
043383815
ABSTRACT:
A structural member comprising a flat strip of web of material having a plurality of slots formed at spaced intervals along each edge of the strip, the inner portion of each slot being of greater dimension than the outer portion and formed to the desired degree of curvature in the plane of the strip.
REFERENCES:
patent: 1446274 (1923-02-01), Roberts
patent: 1731667 (1929-10-01), Johnson
patent: 1999818 (1935-04-01), McIntyre
patent: 2482990 (1949-09-01), Olson
patent: 2484288 (1949-10-01), Hamm
patent: 2619375 (1952-11-01), Merrill
patent: 2668131 (1954-02-01), Hamm
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