Patent for invention that relates to seperable buttons or studs - such as collar and cuff buttons, shirt-studs and the like of that which the article comprises a back or base portion provided with a stem or coupling member and a head provided the means to coact therewith,... (Vrendendurgh, 1902).
Patent for a "combined automatic window fastener and lock by means of which a sliding window-sash may be securely held and fastened at any desired point of elevation and locked against movement in either direction."
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