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1840 · Bellford · "Combining Glass with Metal for Use in Parts of Structures and Pavements where Translucent Medium desirable" · Figure 1 Home > Prism Glass > Patent Index > Figure 1 |
 1,840: 6 of 9 |
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Up: Patent Index |
1840 · Bellford · "Combining Glass with Metal for Use in Parts of Structures and Pavements where Translucent Medium desirable" · Figure 1 Home > Prism Glass > Patent Index > Figure 1 |
1,840: 6 of 9 |
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Drawings: 4 of 667 |
Fig. 1 |