journal ne composition artificial b hovermann salzwedcl germany is pat 932700 aug 311909 see eng pat 15797 of 1908 this j 1908 1206t f b wood process for preserving w b chisolm fr pat 400885 march 16 1909 see eng pat 5908 of 1909 this j 1909 984t f b cementitious materials preparation of w e lake lmdon from henry s packman engineeringco philadelphia eng pat 1834i sept 1 1hi8addition to eng pat 10110 may 0 1908 see addition of sept 1 1908 to fr pat 390194 of1908 this j 1909 244t f b cement 2cd8a11.jpg from çŸ³æŸ±å¦¹å­ å¦¹å­ ï¼ˆé€‰äººå¾®ä¿¡8699525ï¼‰å¤–å›´ä¸Šé—¨æœ åŠ¡ 1206t View Photo