Stanowy Patent

US4258920 (A)

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Bibliographic data: US4258920 (A) - 1981-03-31

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Magnetic jigsaw puzzle

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Page bookmark	US4258920 fA) - Maanetic iiasaw puzzle
lnventor(s):	WALDRON DON C; WALDRON PHANOY +
Applicant(s):	WALDRON DON C; WALDRON PHANOY +
Classification:	- international: A63F9/10; (IPC1-7): A63F9/10
	-European: A63F9/10
Application number:	US1978092921819780731
Priority number(s):	US1978092921819780731

Abstractof US4258920 (A)

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A magnetic jigsaw puzzle wherein eitherthe playing boardorthe playpieces are magnetized and the other is metallic. The method of making magnetized pieces or board comprises mixing iron filings, shredded paper and water with a rust inhibitor in the form of a zinc salt to form a slurry, rolling the slurry, drying the wet mass; printing on the dried sheet; die cutting and packaging.

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