File:Ludwig 1909 pedal patent.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:53, 27 June 2012		1,280 × 2,059 (811 KB)	Lobo	{{Information \|Description={{en\|Drawing of the first William F. Ludwig pedal patent: ''Drum and cymbal playing apparatus''.}} \|Source=U.S. Patent 922706 \|Date={{date\|1909\|05\|25}} \|Author=William F. Ludwig \|Permission={{PD-US-patent}} \|other_versions= }...

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