33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
3832973
352782
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ Ricevere il Premium
Create a timeline
Public timelines
FAQ
About & FeedbackAccordoPrivatezzaFAQ
Support 24/7  
CabinetGet premium
Donate

1 gen 1987 anni - Montreal Protocol

Descrizione:

Montreal Protocol signed to ensure the safety of the earth's ozone layer is signed in Montreal, Canada. The Protocol establishes international cooperation on the phase out of all ozone depleting substances, including the chlorofluorocarbon(CFC) refrigerants which have been used in HVAC equipment.

Aggiunto al nastro di tempo:

Modern AC history

ByTrueMeep
11 mar 2020
0
0
377

Data:

1 gen 1987 anni
Adesso
~ 38 years ago
About & FeedbackAccordoPrivatezzaFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL