DK23375C -
Steam supernatants for flue pipes, consisting of several strings of successively arranged U-shaped pipes or double pipes, the so-called Fields pipes.
- Google Patents
Steam supernatants for flue pipes, consisting of several strings of successively arranged U-shaped pipes or double pipes, the so-called Fields pipes.
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DK23375D1916-09-26
Steam supernatants for flue pipes, consisting of several strings of successively arranged U-shaped pipes or double pipes, the so-called Fields pipes.
DK23375C
(en)