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Leeper Logan Hooks Logan hooks were first created in the late 1960s. Design by Jim Logan and Ed Leeper. In the 1982 Leeper catalog it mentions that Chouinard became interested in the wider base design of the hook and redesigned the Chouinard hooks to have the same wider base. The Chouinard wider base Cliff Hanger hook became available in 1975 copied from the Leeper Logan hook design.
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Leeper 1980 catalog
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Leeper 1982 catalog
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Leeper Cam Hooks
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Leeper 1980 catalog
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Leeper 1982 catalog
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Leeper 1999 advertisement for
steel Fragile Flake Cam Hook |
Leeper 2/10/2000 advertisement for
aluminum Fragile Flake Cam Hook |
Leeper 1990 (?) catalog
The earliest Cam Hooks had 250 Lb stamped on them
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Karabin Museum hooks board
Leeper June 1980 catalog
Aluminum and steel Fragile Flake Cam Hooks 
Since Ed redesigned the Cam Hooks, this ink stamp was added to the bottom of the 1982 Leeper catalog page. "New sizing does not carry 250 lb load designation"
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Summit magazine May 1973
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