Window removal prevention device

Tools and hardware – Locking or closing device

Patent

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49404

Patent

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D02755491

REFERENCES:
patent: D25631 (1896-06-01), Hayden
patent: D175531 (1955-09-01), Brintom
patent: 1739382 (1929-12-01), Austen et al.
patent: 3640559 (1972-02-01), Royer
patent: 3830007 (1974-08-01), Lunke
patent: 4084290 (1978-04-01), Lymar et al.
patent: 4158272 (1979-06-01), Riegelman
patent: 4165553 (1979-08-01), Salerno
patent: 4317312 (1982-03-01), Heideman
patent: 4341042 (1982-07-01), Schultz
Lee Spring Co., Catalog .COPYRGT.1982, Items Marked X1 on front and back cover, and Item marked y-1 on p. 2.
Grammes Metal Products Cat. #66, .COPYRGT.1941, p. 38, Item #33477, p. 46, Item #380.

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