T-Rib chanelath : a material performing the functions of form and reinforcement ... (1918)
North Western Expanded Metal Co. · North Western Expanded Metal Co. · leaf 75
I 1 T-Rib Chanelath Accessories Chanelath Punch for Fastening Sheets This punch is designed for rapid fastening ofChanelath sheets at the sides and ends as shown in theillustration below. This eliminates the wiring other-wise necessary and securely clinches the ribs to-gether, making an absolutely…