Number | Date | Country | Kind |
---|---|---|---|
75 24405 | Aug 1975 | FR |
Number | Name | Date | Kind |
---|---|---|---|
944183 | Finley | Dec 1909 | |
1899977 | Murray et al. | Mar 1933 | |
1942831 | Perry | Jan 1934 | |
2883591 | Camp | Apr 1959 | |
3078043 | Eichmann | Feb 1963 | |
3770196 | Griffith et al. | Nov 1973 | |
3984050 | Gustafsson | Oct 1976 |
Number | Date | Country |
---|---|---|
6714 OF | Jan 1899 | UK |
Entry |
---|
Steam & Hot Water Heating, pp. 4-135 & 4-136, from Handbook of Air Conditioning, Heating & Ventilating, copyright 1959, First Edition. |