Patent Model - Improvement in Trusses
Maker and role
Manvill MacDonald (b.1840, d.1922), Patentee
Sep 01 1874
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Brass, leather, wood
6 x 13 1/2 x 8" (15.2 x 34.3 x 20.3cm)
McDonald's patented improvements in hernia-trusses and abdominal supporters "consists of coil-wire springs continued into arms or levers, and formed into bows and loops, for attachment of pads by screws and washers, or other fastenings." (Patent Number 154,556)
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