What is it? Answers LXXIII

Friday, July 15, 2005

400. Solar cells

401. Hockey skate sharpener

402. Mechanical tachometer

403. Clapboard marker, also called siding marker and weatherboard marker, used to scribe a cutoff line when installing a clapboard.

404. Crandall hammer, a stone dressing tool

405. Magnetic nail holder

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