INVOcell device for intravaginal culture of eggs and sperm during fertility treatment, consisting of an inner chamber, an outer chamber and a retention device, made by INVO Bioscience, USA, 2016-2019 INVOcell embryo culture device for IVF 2016-2019
High frequency (violet ray) device, made in USA, 1920-1955 High frequency (violet ray) device 1920-1955
Outer chamber from INVOcell device for intravaginal culture of eggs and sperm during fertility treatment, made by INVO Bioscience, USA, 2016-2019 Outer chamber for INVOcell embryo culture device for IVF 2016-2019
Electrical device for solving algebraic equations, devised by Arthur Wright, with two diagrams Electrical device for solving algebraic equations
A device for placing rings on the feet of racing pigeons (for use with a pigeon timing clock, such as 1983-245) A device for placing rings on the feet of racing pigeons
Inner chamber from INVOcell device for intravaginal culture of eggs and sperm during fertility treatment, made by INVO Bioscience, USA, 2016-2019 Inner chamber for INVOcell embryo culture device for IVF 2016-2019
Retention device from INVOcell device for intravaginal culture of eggs and sperm during fertility treatment, made by INVO Bioscience, USA, 2016-2019 Retention device for INVOcell embryo culture device for IVF 2016-2019
Lightning conductor earth: Cast iron self-watering device with grid, 1918. Lightning conductor earth: Cast iron self-watering device with grid 1918
Unidentified incomplete optical device. Card reads :- "Optical device" A243311 Optical device, incomplete
Electrostatic indicating device consisting of two glass arms freely pivoted on a lightweight stand, Galvani collection Electrostatic indicating device consisting of two glass arms freely pivoted on a lightweight stand 1780-1798